Abstract
We aerosolized the Escherichia coli (E. coli) and Staphylococcus epidermidis (S. epidermidis) bacteria and collected them on membrane filters. Then we generated air ions by applying a high voltage to a carbon fiber tip and applied them to the contaminated filters. The antibacterial efficiency was not significantly affected by the bacteria being Gram-positive or Gram-negative, however, negative ions showed a lower antibacterial efficiency than positive ions to both E. coli and S. epidermidis, even though the concentration of negative air ions was much higher than that of positive air ions. With a field emission scanning electron microscope (FE-SEM) images and fluorescence microscopy images using a LIVE/DEAD BacLight Bacterial Viability Kit, electrostatic disruption of the bacteria was found to be the dominant antibacterial effect.
| Original language | English |
|---|---|
| Pages (from-to) | 748-755 |
| Number of pages | 8 |
| Journal | Science of the Total Environment |
| Volume | 409 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2011 Jan 15 |
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All Science Journal Classification (ASJC) codes
- Environmental Chemistry
- Pollution
- Waste Management and Disposal
- Environmental Engineering
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Application of air ions for bacterial de-colonization in air filters contaminated by aerosolized bacteria. / Kim, Yang Seon; Yoon, Ki Young; Park, Jae Hong; Hwang, Jungho.
In: Science of the Total Environment, Vol. 409, No. 4, 15.01.2011, p. 748-755.Research output: Contribution to journal › Article
TY - JOUR
T1 - Application of air ions for bacterial de-colonization in air filters contaminated by aerosolized bacteria
AU - Kim, Yang Seon
AU - Yoon, Ki Young
AU - Park, Jae Hong
AU - Hwang, Jungho
PY - 2011/1/15
Y1 - 2011/1/15
N2 - We aerosolized the Escherichia coli (E. coli) and Staphylococcus epidermidis (S. epidermidis) bacteria and collected them on membrane filters. Then we generated air ions by applying a high voltage to a carbon fiber tip and applied them to the contaminated filters. The antibacterial efficiency was not significantly affected by the bacteria being Gram-positive or Gram-negative, however, negative ions showed a lower antibacterial efficiency than positive ions to both E. coli and S. epidermidis, even though the concentration of negative air ions was much higher than that of positive air ions. With a field emission scanning electron microscope (FE-SEM) images and fluorescence microscopy images using a LIVE/DEAD BacLight Bacterial Viability Kit, electrostatic disruption of the bacteria was found to be the dominant antibacterial effect.
AB - We aerosolized the Escherichia coli (E. coli) and Staphylococcus epidermidis (S. epidermidis) bacteria and collected them on membrane filters. Then we generated air ions by applying a high voltage to a carbon fiber tip and applied them to the contaminated filters. The antibacterial efficiency was not significantly affected by the bacteria being Gram-positive or Gram-negative, however, negative ions showed a lower antibacterial efficiency than positive ions to both E. coli and S. epidermidis, even though the concentration of negative air ions was much higher than that of positive air ions. With a field emission scanning electron microscope (FE-SEM) images and fluorescence microscopy images using a LIVE/DEAD BacLight Bacterial Viability Kit, electrostatic disruption of the bacteria was found to be the dominant antibacterial effect.
UR - http://www.scopus.com/inward/record.url?scp=78650988794&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78650988794&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2010.11.012
DO - 10.1016/j.scitotenv.2010.11.012
M3 - Article
VL - 409
SP - 748
EP - 755
JO - Science of the Total Environment
JF - Science of the Total Environment
SN - 0048-9697
IS - 4
ER -